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Finding the Fourth Proportional to 216,460.76, 323,106.01 and 190,894.91

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Solution

The fourth proportional to 216,460.76, 323,106.01 and 190,894.91 is: 284,944.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,460.76 : 323,106.01 = 190,894.91 : x
  2. Step 2: Convert to fraction form
    216,460.76/323,106.01 = 190,894.91/x
  3. Step 3: Cross multiply
    216,460.76x = 323,106.01 × 190,894.91
  4. Step 4: Simplify right side
    216,460.76x = 61,679,290,606.64
  5. Step 5: Solve for x
    x = 61,679,290,606.64/216,460.76
  6. Step 6: Final answer
    x = 284,944.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.